The author tries to support the claim that ordinary and digital mail are very different by sharing a hypothetical story as an example of the subject.
The given excerpt has been taken from The Code Book. The passage makes the readers imagining a scene where Alice wants to send out invitations to her birthday party.
The traditional method of ordinary mail is slow and takes time to reach to the receivers. On the other hand, digital mail is fast and efficient.
Therefore, the correct answer is (D) by sharing a hypothetical story as an example of the subject.
Learn more about Digital Mail on brainly.com/question/1538272
#SPJ4
Disclaimer: This question does not include the excerpt/ text being talked about. The relevant text is:
The difference between ordinary and digital mail can be illustrated by imagining that Alice wants to send out invitations to her birthday party, and that Eve, who has not been invited, wants to know the time and place of the party. If Alice uses the traditional method of posting letters, then it is very difficult for Eve to intercept one of the invitations. . . . In comparison, Eve's task is made considerably easier if Alice sends her invitations by e-mail.
